Hilary Brueck Feb 9, 2023, 4:00 AM Metformin. Francis Dean/Corbis via Getty Images Metformin, an inexpensive, decades-old pill, helps treat diabetes and aids weight loss. Some research suggests it may also help blunt the effects of aging, preventing cancers and dementia. New studies are coming, but one researcher says older people should ask doctors about taking it now. When...
